MichiganTechnologicalUniversityMechanicalEngineeringDegreeCertificate

2025-06-24 7:10:17   来源:MichiganTechnologicalUniversityMechanicalEngineeringDegreeCertificate

弩机的各个零件使用铜销穿插hDG0一起,弩弓被拉开时,铜销会ca1H受较大的作用力ejMB

这件弓是目前笔者所见0EUJ一制造日期明确为秦代A2tD弓,伴随弓出土的还有HUi0些外包铜皮、内为铁芯ehyr镞,平头无锋,可能是7vPM练用镞或弋射用镞uj6Y